public inbox for gcc-bugs@sourceware.org
help / color / mirror / Atom feed
* [Bug target/17984] New: Recent peephole2:s may cause internal compiler errors (2)
@ 2004-10-13 23:14 hp at gcc dot gnu dot org
  2004-10-13 23:32 ` [Bug target/17984] " cvs-commit at gcc dot gnu dot org
                   ` (3 more replies)
  0 siblings, 4 replies; 5+ messages in thread
From: hp at gcc dot gnu dot org @ 2004-10-13 23:14 UTC (permalink / raw)
  To: gcc-bugs

See also PR 17626.  This is another bug in the peephole2 patterns; constants
aren't truncated/sign-extended when changing to a shorter mode.  This causes
ICEs like the following:
x/gcc/testsuite/gcc.dg/cris-peep2-xsrand2.c: In function 'andwlsr':
x/gcc/testsuite/gcc.dg/cris-peep2-xsrand2.c:16: error: unrecognizable insn:
(insn 31 30 25 0 (set (reg:HI 10 r10)
        (and:HI (reg:HI 10 r10)
            (const_int 65399 [0xff77]))) -1 (nil)
    (nil))
x/gcc/testsuite/gcc.dg/cris-peep2-xsrand2.c:16: internal compiler error: in
extract_insn, at recog.c:2034

-- 
           Summary: Recent peephole2:s may cause internal compiler errors
                    (2)
           Product: gcc
           Version: 4.0.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: target
        AssignedTo: hp at gcc dot gnu dot org
        ReportedBy: hp at gcc dot gnu dot org
                CC: gcc-bugs at gcc dot gnu dot org
GCC target triplet: cris-*


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17984


^ permalink raw reply	[flat|nested] 5+ messages in thread

end of thread, other threads:[~2004-10-15 17:13 UTC | newest]

Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2004-10-13 23:14 [Bug target/17984] New: Recent peephole2:s may cause internal compiler errors (2) hp at gcc dot gnu dot org
2004-10-13 23:32 ` [Bug target/17984] " cvs-commit at gcc dot gnu dot org
2004-10-13 23:35 ` cvs-commit at gcc dot gnu dot org
2004-10-13 23:38 ` hp at gcc dot gnu dot org
2004-10-15 17:13 ` pinskia at gcc dot gnu dot org

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).